Blog of Eva Wissenz

The French solar connexion : entrepreneurship and education

Posted dimanche 30 mai 2021 by Eva Wissenz.

We guess you’re now familiar with our Chief Innovation and Tech Officer, Arnaud Cretot, who’s based in France and who pushed the #lytefire to become a great tool for his solar bakery - the 1st in Europe !

Depending on the season, with the Lytefire 5, Arnaud gets from 50kg to 110kg of bread per day and from 110kg to 250kg with the Lytefire 11. Even in winter and with negative température outside and unperfect weather, he can bake his yummi recipes ! Look at his winter breads !

Thanks to his work with NeoLoco, his dedication and the demo days he’s organizing in Normandy, more and more people are getting familiar with the new super sustainable jobs of solar baker and solar roaster (roasting seeds to produce snacks and even a lentils based coffee...).

Inspired by his energy (and financial results), 2 other French solarpreneurs decided to start their solar journey in South and East France.

In the sunny Barcarès, Mr Luc Fournaux started this year to sale his delicious solar snacks on the local market places.

With Le Comptoir d’Hélios, he’s a pionner in his region for sure !

In East France, Lydiane Tyrel started her roasting activity as well, with Du Soleil et des graines.

She’s elaborating delicious recipes and we’ll share more about her very soon !

Another initiative is led by the association Vagabonds de l’énergie, co-founded by Arnaud loooong time ago. Nowadays, Clément Bresciani and his friends are using a Lytefire 5 for education to climate change in schools.

This year only, they got 24 classes, from 1st grade to 6th grade, meaning about 600 kids exposed to this new tech in 4 school nearby Louviers, France.

Clément is organizing a 3hrs workshop for kids during which they learn about energy, direct solar concentration and tehn go outside to experiment with the Lytefire. The workshop is structure for small teams of 2-3 kids with 5 missions.

Obviously, they all cooperate and are so happy to taste their solar cookies !

Contact the Energy Vagabonds for more info here.

To discover the Lytefire solar oven, here is a cool video for you :


Starting in Ethiopia

Posted Friday 21 May 2021 by Eva Wissenz.

STEM Synergy, is a US-Ethiopian NGO, focused on empowering people (especially youths and women) through practical STEM (Science, Technology, Engineering and Math) education, sustainable local solutions and entrepreneurship in Ethiopia.

Lorin is currently in Addis Ababa, starting with the STEM technology transfer team in their great office/workshop space in the big city. Here below is Abiyot, STEM project manager, and the workshop team who are getting down to business right away!

Our first mission together in Ethiopia is to complete one Lytefire 5. Despite some rainy weather, we had great luck and the sun was there for the demo day!! The traditional stick burning went just fine so all is good and we’re very much looking forward to the next steps.

More is coming soon!


Ekopratik - a solar oven in La Réunion island

Posted lundi 5 avril 2021 by Eva Wissenz.

A small team is currently involved in building a DIY solar oven Lytefire 4 based on the old plans we used to share (and we’ll share new ones at some point).

Ekopratik is the non-profit association partnering with La Reunion University and CNRS (Centre National de Recherche Scientifique).

This fab lab is working on creating low-tech devices and they are adapting our tech with what’s available locally.

Soon they’ll be able to organize demo for the bakers active in the island.

Want to build yourself ? Visit lytefire.com !


The Saturday Solar Baking’s in Kenya

Posted mercredi 10 février 2021 by Eva Wissenz.

If you remember, we started in Kenya in 2016 with World Vision, and continued the prototyping the year after with the support of Autodesk Foundaiton and Wärtsilä. Kenya, and especially Kisumu, is dear to us because the first communities where empowered there and David Chepkwone was the very first solar baker using Lytefire 5 solar oven.

Five years later, the good work continues as you can see !

Mr Jared Omondi works with Lorin as a Technician since 2016. His workshop has been recently upgraded. And since a few months, Miss Joan Arwa Ogwang joined our team. She was a member of Capital Airtime Ltd
Safaricom authorized dealer and Western regional manager and she is now also Solar Fire’s country representative in Kenya.

Together, they are introducing the Lytefire 5 solar oven to the population in Kisumu. And every Saturday afternoon, sun permitting, they are putting all their heart to create friendly demo of solar baking for communities and potential clients.

The proof by example.
Nothing can be more powerful.
And yummy, as you can see.


Happy New Year 2021!

Posted Tuesday 12 January 2021 by Eva Wissenz.

Dear Friends, Clients, Partners, Followers and Supporters,

In 2020, the Lytefire Solar Sauna and the Lytefire Solar Oven have been featured in 32 articles in the media in France, Switzerland, Finland, Germany and USA. National newspapers as well as national TV shows :)

Thank you for your amazing support because yes, we survived 2020. We are stronger, and we are ready for growth with now 17 beautiful persons working with us, directly or not, as team members of Solar Fire Concentration Oy, booster of local Solar Fire’s or super motivated interns staying with us in Finland in our HQ set in a great eco-village.

The Lytefire solar solutions are one of the best options to create a decentralized solar economy.

We wish you all courage and peace.


Followup visit in the Philippines: 8 months later

Posted Monday 27 April 2020 by Eva Wissenz.

We recently revisited our partners USTP (The University of Science and Technology of the Southern Philippines) and CarbonCycle in Cagayan de Oro, Philippines.

Nearly a year has passed since Lorin was last in the Philippines working with CarbonCycle to power their ‘waste to riches’ business model with Lytefire, assisted by ‘on the job’ trainee students from the Faculties of Mechanical Engineering, Electrical Engineering and Computer Sciences. Together, we are still seeking R&D funding from DOST and other Filipino government initiatives.

Since then, the mechanical engineering students have made a few modifications to the cashew roaster we Installed a Lytefire5 Multi at a facility owned by the women’s group BAPPCO (Best Agri Products Processing Cooperative).

The roasting drum now rotates automatically thanks to the installation of a 150W solar panel on top of the oven.

The students also created a new end-loading and unloading door for the cashews, actuated by reversing the direction of spin of the roasting drum.

Lorin, as well as Dale from CarbonCycle met with Bronson Mabulay, the Director of Innovation and Technology Solutions and Dr. Ambrosio Cultura, who last year was Vice Chancellor for Research and Innovation the but is now President of the University. They brought with them the architect in charge of the new TechnoPark that is being built as a hub to promote the commercialisation of products developed by USTP students as they progress with their studies.

It was generally agreed that there would be some space saved for solar concentrators on the grounds and rooftops of the new TechnoPark. :)


Powerful talk: it’s all connected.

Posted Tuesday 31 March 2020 by Eva Wissenz.

You need to take 7 minutes and watch this, it’s definitely worth it!

Here’s our Chief Operating Officer Urs Riggenbach talking about solar, climate crisis, sustainability and entrepreneurship.

"My hope is that we’re not just fixing the carbon issue. We’re fixing, along with this carbon issue, we’re fixing the other issues that got us here. … You can’t separate poverty and inequality, women empowerment and carbon emissions and corruption, those are not separate issues in a way. They are very much connected.”


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